11975755 has 16 divisors (see below), whose sum is σ = 16360704. Its totient is φ = 8330080.

The previous prime is 11975713. The next prime is 11975759. The reversal of 11975755 is 55757911.

It is not a de Polignac number, because 11975755 - 2¹⁷ = 11844683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11975759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3469 + ... + 5998.

It is an arithmetic number, because the mean of its divisors is an integer number (1022544).

Almost surely, 2^11975755 is an apocalyptic number.

11975755 is a deficient number, since it is larger than the sum of its proper divisors (4384949).

11975755 is a wasteful number, since it uses less digits than its factorization.

11975755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9506.

The product of its digits is 55125, while the sum is 40.

The square root of 11975755 is about 3460.6003814367. The cubic root of 11975755 is about 228.7885579046.

It can be divided in two parts, 119757 and 55, that multiplied together give a triangular number (6586635 = T₃₆₂₉).

The spelling of 11975755 in words is "eleven million, nine hundred seventy-five thousand, seven hundred fifty-five".